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drm/tegra: dp: Enable alternate scrambler reset when supported 

If the sink is eDP and supports the alternate scrambler reset, enable
it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2015-07-07 21:14:12 +02:00
parent 553769ff8d
commit c4a2728852
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/tegra/dp.c
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@ -225,5 +225,12 @@ int drm_dp_link_configure(struct drm_dp_aux *aux, struct drm_dp_link *link)
if (err < 0)
return err;
if (link->caps.alternate_scrambler_reset) {
err = drm_dp_dpcd_writeb(aux, DP_EDP_CONFIGURATION_SET,
DP_ALTERNATE_SCRAMBLER_RESET_ENABLE);
if (err < 0)
return err;
}
return 0;
}